133333333333111 has 4 divisors (see below), whose sum is σ = 133363316097472. Its totient is φ = 133303350568752.

The previous prime is 133333333333091. The next prime is 133333333333117. The reversal of 133333333333111 is 111333333333331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133333333333111 - 2²⁷ = 133333199115383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133333333333117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14991375510 + ... + 14991384403.

It is an arithmetic number, because the mean of its divisors is an integer number (33340829024368).

Almost surely, 2^{133333333333111} is an apocalyptic number.

133333333333111 is a deficient number, since it is larger than the sum of its proper divisors (29982764361).

133333333333111 is an equidigital number, since it uses as much as digits as its factorization.

133333333333111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29982764360.

The product of its digits is 177147, while the sum is 37.

Adding to 133333333333111 its reverse (111333333333331), we get a palindrome (244666666666442).

It can be divided in two parts, 1333333333331 and 11, that multiplied together give a palindrome (14666666666641).

The spelling of 133333333333111 in words is "one hundred thirty-three trillion, three hundred thirty-three billion, three hundred thirty-three million, three hundred thirty-three thousand, one hundred eleven".